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Finding the Fourth Proportional to 545,963.70, 818,945.55 and 335,720.10

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Solution

The fourth proportional to 545,963.70, 818,945.55 and 335,720.10 is: 503,580.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,963.70 : 818,945.55 = 335,720.10 : x
  2. Step 2: Convert to fraction form
    545,963.70/818,945.55 = 335,720.10/x
  3. Step 3: Cross multiply
    545,963.70x = 818,945.55 × 335,720.10
  4. Step 4: Simplify right side
    545,963.70x = 274,936,481,940.56
  5. Step 5: Solve for x
    x = 274,936,481,940.56/545,963.70
  6. Step 6: Final answer
    x = 503,580.15

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.